sensors Mode-S transponder

48C2AD

ICAO 24-bit transponder address · allocated to Poland

Currently assigned to SP-RZN · BOEING 737 MAX 8

Hex
48C2AD
Octal
22141255
Decimal
4,768,429
Country
PL
Tail
SP-RZN
Type
B38M
No current signal · last broadcast 15h ago
Flights observed
13
Distinct callsigns
11
Country
PL
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 48C2AD.

Country allocation

The ICAO 24-bit address 48C2AD falls within the block assigned to Poland (PL) by ICAO Annex 10, Volume III. Every aircraft registered in Poland receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 11 distinct

Callsign Airline Flights Last seen
RYR7SA - 2 2026-04-13
RYR41CA - 2 2026-04-13
RYR9KJ Ryanair 1 2026-04-12
RYR8YH - 1 2026-04-13
RYR89NR - 1 2026-04-13
RYR73WB - 1 2026-04-14
RYR6YM - 1 2026-04-13
RYR605 - 1 2026-04-14
RYR5XC - 1 2026-04-12
RYR3UV - 1 2026-04-13
RYR22ZE - 1 2026-04-14

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 RYR73WB - Apr 14, 09:30 UTCApr 14, 10:40 UTC1h 10m
2026-04-14 RYR22ZE - Apr 14, 07:10 UTCApr 14, 08:30 UTC1h 20m
2026-04-14 RYR605 - Apr 14, 05:15 UTCApr 14, 06:05 UTC50m
2026-04-13 RYR6YM - Apr 13, 21:00 UTCApr 13, 22:10 UTC1h 10m
2026-04-13 RYR41CA - Apr 13, 19:50 UTCApr 13, 20:05 UTC15m
2026-04-13 RYR41CA - Apr 13, 18:55 UTCApr 13, 20:05 UTC1h 10m
2026-04-13 RYR7SA - Apr 13, 16:15 UTCApr 13, 17:55 UTC1h 40m
2026-04-13 RYR7SA - Apr 13, 15:50 UTCApr 13, 16:15 UTC25m
2026-04-13 RYR89NR BUD → STN Apr 13, 12:50 UTCApr 13, 14:50 UTC2h 0m
2026-04-13 RYR8YH MAD → BUD Apr 13, 09:15 UTCApr 13, 11:55 UTC2h 40m
2026-04-13 RYR3UV - Apr 13, 04:35 UTCApr 13, 07:35 UTC3h 0m
2026-04-12 RYR9KJ TSF → EDI Apr 12, 19:20 UTCApr 12, 20:15 UTC55m
2026-04-12 RYR5XC - Apr 12, 17:15 UTCApr 12, 18:25 UTC1h 10m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the SP-RZN page for operator, model, and routing details .

Mode-S 48C2AD frequently asked

What is Mode-S code 48C2AD?
48C2AD is an ICAO 24-bit transponder address. Allocated to Poland. Assigned to SP-RZN.
Where is Mode-S 48C2AD registered?
Mode-S code 48C2AD is allocated to Poland (PL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48C2AD broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 48C2AD, octal 22141255, decimal 4,768,429.
What flights does 48C2AD operate?
Mode-S 48C2AD has broadcast 11 distinct callsigns, including RYR7SA, RYR41CA, RYR9KJ, RYR8YH, RYR89NR.